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US2816228A
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Semiconductor phase shift oscillator and device
Assignee: RCA Corp
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Filing: 1953-05-21
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Granted: 1957-12-10
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Expires: 1973-05-21
Abstract
No abstract record available.
Inventors
- 👤 Johnson Harwick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:51
CPC Classifications
H; H10; H10D; H10D84/00; H10D84/60; H10D84/611; H10D84/613; H03; H03B; H03B5/00; H03B5/20; H03B5/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2600500A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-12-09 | 1961-06-10 | 1961-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-09 | 1965-06-10 | 1965-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-09 | 1969-06-10 | 1969-12-10 | $7700.00 | Window Closed / Lapsed |